Malicious PDF — malware analysis report

Static analysis result for SHA-256 9adf8bcf3e5d63a4…

MALICIOUS

PDF

71.5 KB Created: 2022-02-20 07:04:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-20
MD5: 1d1f0d85ac3ec3bd54d8b925b7571f20 SHA-1: 44918a223a80deff425e7dc84668056e16c6cf74 SHA-256: 9adf8bcf3e5d63a458edebee98518534da94cc2c059635e34f93ebb2bf272c9f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9849

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614dc247cee65---kawamupe.pdf In PDF document text
    • http://csc0535.com/userfiles/file/20210709094601_ng2tzu.pdfIn PDF document text
    • https://pikhospital.com/ck_uploads/uploads/files/37699648724.pdfIn PDF document text
    • https://branchennachweis.eu/userfiles/file/libexojixikipumelo.pdfIn PDF document text
    • https://sportuna.be/ckfinder/userfiles/files/10602157256.pdfIn PDF document text
    • http://inhome360.ru/admin/ckfinder/userfiles/files/55091079210.pdfIn PDF document text
    • http://www.alite.com.br/assets/kcfinder/upload/files/46076587151.pdfIn PDF document text
    • http://orosweb.hu/userfiles/file/patutudedix.pdfIn PDF document text
    • http://apismorava.eu/docs/xilubixejoxixofijen.pdfIn PDF document text
    • http://andlupa.com/userfiles/file/wivodifasupoxezonapij.pdfIn PDF document text
    • https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/421d5846af646c9bde164174fa0cf911/lavifagis.pdfIn PDF document text
    • http://miass.realxenon.ru/uploads/files/lazepobaxil.pdfIn PDF document text
    • http://archissimo.eu/userfiles/files/fovewibad.pdfIn PDF document text
    • http://cmtl.in/uploads/userfiles/file/file/ralemowodudisiwexexulo.pdfIn PDF document text
    • http://hanart21.com/files/userfiles/file/3665724994.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610d898893059---10736992075.pdfIn PDF document text
    • http://www.nationaalgolfcongres.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161331289b8677---26125359176.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610f371dcf2bc---74485400205.pdfIn PDF document text
    • http://yanartekstil.com/firma/files/58002854886.pdfIn PDF document text
    • http://wakabaeducation.com/userfiles/file/woteze.pdfIn PDF document text
    • http://transchem-tech.com/Uploadfiles/files/teguvujew.pdfIn PDF document text
    • http://actlogistic.vn/upload/editor/files/68185061808.pdfIn PDF document text
    • http://bjerkelunden.org/content/files/userfiles/file///42819189121.pdfIn PDF document text
    • https://frischgeschluepft.de/kcfinder/upload/files/13774249081.pdfIn PDF document text
    • http://everbeenmagnet.com/js/upfiles/files/luniwugatil.pdfIn PDF document text
    • http://lesbambousbleus.fr/ckeditor/upload/files/sokake.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/20886d97026ae16dc0a711910b5e8635/38936064316.pdfIn PDF document text
    • http://www.cabinet-pollet-lille.fr/img/uploaded/file/virivisudasosunokela.pdfIn PDF document text
    • http://shqinze.net/admin/upimg/file///tewuruxevapabo.pdfIn PDF document text
    • http://jyotiacademicpress.org/uploads/file/12931784998.pdfIn PDF document text
    • http://amsuatrust.org/survey/userfiles/files/55132305670.pdfIn PDF document text
    • https://tfsroanoke.com/home/tfs/public_html/new/ckfinder/userfiles/files/83827312789.pdfIn PDF document text
    • http://xn----7sbndn5at.xn--p1ai/uploads/files/budulelazobisukamila.pdfIn PDF document text
    • https://wirut.co.za/XSRYdR1H?utm_term=tamil+movies++2017+tamilgunPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000afc5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000afc5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000afc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFC5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0000c6e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6E5 10824 bytes
SHA-256: 2bf771988d8da08f62ff43f9f16c67992085a03f22281377032ec5ca6661fbca
font_02_sfnt_off0000e008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE008 18164 bytes
SHA-256: e82373cbad1960a98b5f8d521fea370a694ca3e52d6c0874273ae7f0a1dcc363